I have learned about some thoughtful metro designs, such as: 1. Barrier-free facilities: Metro stations are usually equipped with barrier-free facilities, such as blind alleys, barrier-free elevators, wheelchair ramps, etc., to make it easier for people with mobility impairments to get around. 2. Information prompts: Metro stations are equipped with a variety of information prompts, such as the arrival time of the train, the name of the station, the interchange routes and so on, which makes it easier for passengers to know the train operation situation and station information. 3. Seats and handrails: Seats and handrails are usually installed in subway cars to make it easier for passengers to stand up and sit down, and to reduce the fatigue of standing for a long time. In addition to the above thoughtful design, the subway can also add some convenient facilities, such as: 1. charging facilities: in the subway station and car charging facilities, convenient for passengers to charge. 2. children's playground: in the subway station set up a children's playground, convenient for parents to bring their children waiting for the train have a place to play. 3. food and beverage service: in the subway station set up a food and beverage service, convenient for passengers to wait for the train or transfer to the food and beverage. 4. air purification facilities: in the subway station set up a food and beverage service, convenient for passengers to wait for the train or change to buy food and drink. 4. air purification facilities: air purification facilities will be installed in MTR cars to improve the air quality inside the cars and the riding experience of passengers. These convenient facilities can better meet the needs of passengers and improve the service quality of the subway.